Printing-press.



LF. NILES.

PRINTING PRESS.

APPLICATION FILED 11111.30. 1911.

l, l 13,561 Patented Deo. 8, 1914.

I. P. NILES.

PRINTING PRESS. APPLICATION FILED JAN, 3o. 1911.

1,1 19,861 Patented Dec.8, 1914.

2 SHEETS-SHEET 2.

Witwe/aoco: a .Suvewoz support for the toggle link, in other words on opposite sides of the rock shaft.

The actuating means for engaging the abutments to make or break the toggle may. vary. In Fig. 1 this` actuating means oonsists of a member 13 support-ed at one end by a swinging link 14 and having its other or free end provided with oppositely arranged shoulders 15 for engagement with the two abutments. The free end of the actuating member is disposed in between the two abutment members so as to be capable of engagement with either, and the end of the member may normally rest upon the lower abutment {11),50 as to be slidably supported thereon. Whenthe free end of the actuating member is so supported, the abutment members ma be in the form of rolls, as indicated in Fig. 1, so as to reduce the friction. The actuating member is reciprocated by suitable means such as a cam 16 engaging a cam roll 17 carried by the swinging lever 14. This cain is timed to rotate in unison with the members of the printing couple. This may be done by means of the intermeshing gears 18 and 19 on the impression cylinder and cam shaft 20 respectively.

The devices for positioning the actuating means may vary. In Fig. 1 this positioning device is manually controlled land consists of a pedal 21 connected by a rod 22 to the actuating member. A yielding part may be placed in this connection, such as the spring 23, having a bearing between the shoulde 24 on the rod and the lug 25 on the actuv ating member. If, when the pedal is ilepressed, the actuating member is on the' limit of its out stroke, as in Fig. '1, the spring will store power and give the actu- 1 ating member a further lift at the end of its inward stroke, so asto bring the uppermost shoulder 15 iiitoengagement behind the abutment 12. The positioning pedal lafter being depressed, may be locked in such position by means of a pivoted latch 26 which is controlled by a supplementary pedal 27.

In the operation of that form of the device shown in Fig. 1, the sheets are fed from the feed-board 23 by automatic or other means to the impression cylinder 2. So long as the feeding of stock is uninterrupted, the parts will remain substantially as in Fig: 1, the actuating member simply reciprocating idly back and forth. When any interruptioii in the feed occurs, or when it is desired to trip the impression for other reasons, the foot pedal 21 will be depressed thereby elevating the actuating member into position for engagement with the upper abutment l2. Y lVhen the uppermost shoulder 15' on the actuating member engages with the upper abutment 12, the said iii-amber will inits outward reeipnmation, rock the toggle link '7 about the center of support 8, thereby breaking thel toggle and turning the eecentric bearings so as to shift the cylinder 2 away from the other` member of the print ing couple. parts may be allowed to remain in this tripped position as long as desired. But if the latch is not used, when the lpressure is removed from the foot pedal 21, the actuating member will lower of its own weight until the lowermost shoulder 15 comes into engagement with the lower abutment 11. Then, upon the outward stroke of the actie, ating member, the toggle linkt' Wiil be turned back to its original position, thereby making the toggle and restoring the. ^impression.

The operation of that form of the invention shown in Fig. 2 is substantially the same as just described. I-Iere also the pivotally mounted toggle link 7 carries the two abutments 11 and 12 which are disposed on opposite sides of the center of support of the link. In this case, however, the 'actuating means consists of two reciprocating members 29 and 30, the -first having a shoulder 31 for engagement with the abutment 11, and the other yhaving a shoulder 32 for engagement with' the abutment 12. The members' 29 and 30 may be conveniently supported from a lever' 33 piroted to rockupon the center 34, and for the purpose of imparting the necessary reciprocating inove- Vrient to the members 29 and 30, a cani 35' hay be provided' for engagement withA 'the z'rniioll 36 carried by the lever 33." From what has already been said, the trippingv and untripping -function of these partis'wiil be readily understood without jfurther description. The means for positioning the actuating means in this second forni of the` invention consists preferably of a pivoted.

lever 37 having connection with the reeiprocating members 29 and 30 through the agency of the rocker arms 38 and 39 and the connecting rods 40 and 41. In this instance also the machine may be manually By the use of the latch 26 the controlled, in/which case the tripping and I untiipping of the impression could be effected by shifting the .lever 37. I have, however, shown in this View a -form of automatic trip which is controlled according to the presence or absence of stock at the proper time. This controlling mechanism as here shown consists of a pivotcd feeler linger 42, coperating with the drop roller 42h-and a rocking lever 14 pivoted to rock on the center 45, and Connected to the leier 3T by means of the rod 4G. rihe lever 44 mayy he caused to rock by any suitable means, such as the cam 1T engagiiig the cam roll 4S connected to the arm 44 bj means of an extension 49.

'lhe feeler linger is disposed in the line of the sheet feed (indicated by the. dotted line the struik and when no stock is present at the time it should be, the feeler iin ger will assume vthe dotted line position in F ig. 2. At this time the rocking arm 44 will have been turned by the cam 47 to the position indicated in dotinea, so that the lever 30 will be shifted to bring the shoulder 32 thereon into position ,ior engagement with tne abutment when tbe cam 5 now rocks the arm 33,

j me Lrncmbcr O will be lifted, therebyl rocking the togg e link 7, tuus breaking t e toggle and interrupting the impression. If now is ted 'in at the proper time, the point of the iecler iia'eger will be depressed by the stonk to the fall line position in Fig. 2, so tbai'. the heel oi lic finger will not interfere .vii the rocking movement of the arm 44. 'lhcrefoe, when the arm 44 is rocked l ck to its full line position, the actuating 'y D wil, through the connections de- 'fe shifted so as to engage the abutand lien the cam 35, acting through iw .ell '3 upon t 3 lever 33, will cause the member to rock the toggle link and retoze the impression. In addition to tonni-tic control, the tripping and unggf of llisf' sion will also be conf 5 v oy means of a handle 51 ytion i the arm 52 which is ed if; the rocking arm 44. It si ion,4 that when this handle is def wn in lnttcd lines, the impresn 'ppcd the same as when the er linger drops into engagerocking arm 44. cia fd, is: priming press, a printing couple a cylinder and a member coperilicreu'itn, movable bearings for said mlcr, ogglcs cijimprising links pivoted e end upon tbc frame of the press and -erted at rim ailier end to the bearings, bers carried by the pivotal'ly and disposed on opposite y centri; of support of said links, :in actuating device mounted to reciprocate between said elmtmcnt members and having shouldeif; for engagement with the abutment :mail s for reciprocating the act; Y l vice. and means for positioning mui-inne! devine to engage one or the of tbe abutment members. in 'i printing press, a printing couple @embodying a cylinder and a member coperating therewith, eccentric journal bearings fo the t 'linden toggle links pivotally coni ,ed l reen the eccentric journal bearvronai'j' part of the press, abutf carwwl by the toggle link mi unen the stationary part compris :15.-:

and disposed on opposite sides of such center ofpivotal support, actuating means having a reci irocating movement7 and means to position the actuating means to engage one or the other of the abutment members.

3. In a printing press, a printing couple embodying a cylinder and a member coperating therewith, eccentric journal bearings for the cylinder, toggle links connected at one end to the eccentric bearings and at the other end pivotally supported on a station ary part of the press, abutments carried by the said pivotally supported links and ar ranged in opposite sides of the centers of support .of such links, an actuating device mounted to reciprocate in between the said abutments and formed with shoulders for engagement with said abutments, means for reciprocating the actuating device, and means for positioning said actuating device to engage one or the other of the abutments.

4. In a printing press, a printing couple embodying a cylinder and a member coper ating therewith, eccentric journal bearings for the cylinder, toggles comprising links 90 pivoted at one end upon the frame of the \press and connected at the other end to the bearings, abutment members carried by the pivotally supported links and disposed on opposite sides of the center of support of said links, an actuating device mounted to reciprocate between said abutment members and having shoulders for engagement with the abutment members, means for reciprocating the actuating device, and means for positioning the actuating device to engag: one or the other of the abutment members.

5. In a printing press, a printing couple embodying a cylinder and a member coperating therewith, eccentric journal bearings 105 for the cylinder, toggles comprising links pivoted at one end upon the frame of the press and connected at the other end `with the eccentric bearings, spaced a'uutments carried by the pivot-.illy mounted links disposed on opposite sides of the centers of support of said links, an actuating device having shoulders for engagement with the said abutments, said actuating device having its one end normally resting upon one oi the abutments, a swinging link: supporting the oppovsite end of the actuating device, cam for imparting a reciprocating movement to the actuating device, and means for shifting the outer end of the actuating device to bring it into engagement with the c her of the abutments.

6. In a printing press, a printing couple embodying a cylinder and, a member cooper ating therewith, movable bearings for said cylinder, a rock shaft, connectiims from said rock shaft to the movable bearings, abutment members carried by the rock shai't on oppoY site sides -thereof, an ctuating member mounted to reciprocate in between said 'im IIO abutment members and, prfffiiefl with vgjned. at Plainfield in the c ounty of shoulders on opposite Sides thm-*edi zmi nion and State of New Jersey this twentyfor reciprocating said member, und im iwl f azy of January A. D. 1911.

for positioning the actuating xiiembei cause one or the other of the hmiidel thereon to actively engage with a www tive abutment member.

IRVING F. NILES. is? i Hwses I el E. TETWORTH, ASA F, RANDOLPH. 

